/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

package org.apache.kylin.query.security;

import java.util.ArrayList;
import java.util.List;

import org.apache.kylin.common.KylinConfig;
import org.apache.kylin.common.util.ClassUtil;

public class QueryInterceptorUtil {
    private static List<QueryInterceptor> queryInterceptors = new ArrayList<>();
    static {
        String[] classes = KylinConfig.getInstanceFromEnv().getQueryInterceptors();
        for (String clz : classes) {
            try {
                QueryInterceptor i = (QueryInterceptor) ClassUtil.newInstance(clz);
                queryInterceptors.add(i);
            } catch (Exception e) {
                throw new RuntimeException("Failed to load query interceptors", e);
            }
        }
    }

    public static List<QueryInterceptor> getQueryInterceptors() {
        return queryInterceptors;
    }
}